In its designated
role as a high speed low altitude daylight reconnaissance platform,
the Jaguar GR.1A was fitted with a dedicated reconnaissance pod
manufactured by BAC, on its
centreline stores station.
The pod contained one forward looking F.95 Mk.7 camera, behind this
there were installed four synchronised F.95 Mk.10 cameras mounted in
a fan configuration. This provided horizon across-track coverage and
also fitted was a British Aerospace Dynamics 401 infra-red linescan
sensor. The F.95 cameras were located in a pair of rotating drums
within the pod, these rotating to expose the camera ports during
operations. The forward looking and two inner fan cameras were
position in the forward drum whilst the aft drum contained the two
outer fan cameras. The infra-red linescan sensor was located in the
rear of the pod.
Both the F.95 Mk.7 and 10 were fitted with image movement
compensation (IMC) and automatic exposure control (AEC). The
infra-red linescan sensor provided across track angular coverage of
120°. The sensor worked in the vertical mode or could have been
offset 30° to port or starboard. An alternative fit for medium high
day reconnaissance was also available. This fit comprised of role
change module which replaced the two outer fan F.95s within the aft
camera drum. The module contains an AGI Type F.126 240mm camera
mounted in the vertical mode and was also fitted with both IMC and
AEC. The two inner F.95 cameras and the
IRLS were retained as a integral part of the medium altitude fit,
however, owing to the small scale of the
resulting imagery from these cameras |
limited
their intelligence valve and were mainly used as a tracking aid.
The forward facing F.95 was not used when the medium altitude fit
was being used.
Two RAF Squadrons that used this pod, II(AC) Sqn based in RAF
Germany and 41(F) Sqn based in the UK.
Later this pod was replaced
with a LOROP pod, also known as the Lightweight Pod this contained a
single 36in focal length Vinten Type 690 (F.144) tactical stand off
camera, it had a limited field of view of only 7°.
The pod was fitted with a movable nose cone , this enabled
the pilot to select the optimum stand off distance and depression
angle from the air. This was later replaced with the VICON 18 Series
601 GP(1) pod, again fitted with the F.144 camera fitted with an
18in focal length Leitz lens with a 14in field of view and with a
5in film format. Like the LOROP pod the camera can be rotated
through various angles of depression and could also operate in the
vertical mode. In 1994 the camera was fitted with a 450mm (17.7in)
Matra lens. Also fitted in the pod was a Vinten Type 900B (F.152)
Panoramic camera, this was fitted with a 3in lens and imagery was
recorded on 70mm film. The pod was also know as the Jaguar
Reconnaissance Pod (JRP) and then the Joint Reconnaissance Pod, once
it started to be fitted on other RAF aircraft. Jaguars operated the
JRP in the low-level reconnaissance role.
Again the reconnaissance
pod was updated, the "wet film" cameras were removed and replaced with a
digital imaging system, designed by Thales Optronics UK. In the
beginning it was know as the JRRP (The Jaguar Replacement
Reconnaissance Pod), however, after entering service in the 1990s it
was renamed the Digital Joint Reconnaissance Pod (DJRP). Equipped
with a high resolution / wide angle sensors, these being the 8042
electro-optical (EO) sensor and a Super Vigil Infra Red (IR) sensor.
During missions these sensors fed digital data to two on-board
storage recording modules. The EO sensor was designed to provide a
wide area coverage, being able to record at both long and short
range, thus giving the aircraft a great "stand-off" capability. The
IR sensor worked by recording horizon to horizon image based on the
flight path of the aircraft. It was planned for the recorded data
within the modules to be to be transmitted via a datalink to a
ground station. However; it is unsure if this was ever used.
Standard practice was to download the data from the modules after
flight.
During its life in RAF service, DJRP was also fitted to the both the RAF's Harrier
and Tornado fleet of aircraft. The pod also being exported to the
South African Air Force (SAAF) to be fitted on their Gripen
aircraft, flight trials were due to start in late 2010.
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